The Great pyramids were built after the Flood.
Egypt itself is named after Mizraim, a grandson of Noah in Genesis 10. That places Egyptian civilization firmly post Flood, not sailing through it as skeptics like to claim.
The false atheist claim that Egyptians existed uninterrupted through the Flood (disproving the flood)is not evidence based history. It is based on false secular dating methods. Scripture gives a clear lineage, a clear reset of humanity, and a clear timeline. The pyramids stand as monuments of a rebuilt world, not survivors of judgment.